Mohan B S, Hosetti B B
Department of Biotechnology, R.V. College of Engineering, Mysore Road, Bangalore - 560 059, India.
J Environ Biol. 2006 Oct;27(4):701-4.
The objective of this experiment is to study the potential ability of Salvinia natans L. to use in phytoassay for the cadmium toxicity in ecotoxicological studies. It is a simple and cost competitive method. The sensitivity of S. natans in terms of biochemical changes and enzyme activities to Cd2+ was remarkably noticeable. The catalase and protease activity was significantly decreased in the presence of cadmium, with increase of peroxidase and superoxide dismutase activity. The level of protein, carbohydrate and chlorophyll decreased and proline content increased in plants. The maximum permissible concentration of cadmium in different general water quality standards was evaluated and found that cadmium standard is not stringent enough.
本实验的目的是研究槐叶萍在生态毒理学研究中用于镉毒性植物检测的潜在能力。这是一种简单且具有成本竞争力的方法。槐叶萍在生化变化和酶活性方面对Cd2+的敏感性非常显著。在镉存在的情况下，过氧化氢酶和蛋白酶活性显著降低，而过氧化物酶和超氧化物歧化酶活性增加。植物中蛋白质、碳水化合物和叶绿素水平下降，脯氨酸含量增加。评估了不同一般水质标准中镉的最大允许浓度，发现镉标准不够严格。
